Tag Archives: THEMIS

THEMIS: Frost-free dunes in the north polar sand sea

THEMIS Image of the Day, May 25, 2018. This VIS image shows part of Olympia Undae, a large dune field that surrounds part of the north polar cap. At the top of the image the dunes are small and isolated. … Continue reading

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THEMIS: Polar dunes and layers of ice and dust

THEMIS Image of the Day, May 24, 2018. This VIS image shows the margin between the polar cap and the surrounding plains. There are dunes on the plains at the top of the image. In the upper left corner it … Continue reading

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THEMIS: Twisting channels in Hebrus Valles

THEMIS Image of the Day, May 23, 2018. Located west of the Elysium Volcanic complex, Hebrus Valles is a complex channel system that flowed to the north. In this VIS image the channel features have the appearance of a channel … Continue reading

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THEMIS: Cerberus Fossae, source of floods

THEMIS Image of the Day, May 22, 2018. Today’s VIS image shows a section of Cerberus Fossae. Located southeast of the Elysium Planitia volcanic complex, the linear graben was created by tectonic forces related to the volcanic activity. The fossa … Continue reading

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THEMIS: Lava flows chopped by graben in Olympica Fossae

THEMIS Image of the Day, May 21, 2018. The linear channel in the bottom half of this VIS image is part of Olympica Fossae. Olympica Fossae is a complex channel form located on the Tharsis plains between Alba Mons and … Continue reading

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THEMIS: Chaos grows in Chryse

THEMIS Image of the Day, May 18, 2018. n planetary nomenclature, the descriptor term chaos means “distinctive area of broken terrain”. The general morphology of chaos is steep-sided mesas in close proximity. This VIS image shows a region of Chryse … Continue reading

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THEMIS: Youngish crater in Utopia Planitia

THEMIS Image of the Day, May 17, 2018. This VIS image shows an unnamed crater located in Utopia Planitia. This relatively young crater has a steep inner rim, with floor deposits that originate from the crater rim itself. As craters … Continue reading

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THEMIS: Curiosity’s home, Gale Crater

THEMIS Image of the Day, May 16, 2018. This VIS image shows much of the same location as yesterday’s image. Gale Crater is the home of the Curiosity Rover. The rover landed in August of 2012 and has been exploring … Continue reading

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THEMIS: Gale Crater

THEMIS Image of the Day, May 15, 2018. This VIS image shows part of Gale Crater. Gale Crater is the home of the Curiosity Rover. More THEMIS Images of the Day by geological topic.

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THEMIS: Volcanic fissure in Labeatis Fossae

THEMIS Image of the Day, May 8, 2018. The feature that crosses this VIS image is a graben. Graben are formed by tectonic action, where a block of material moves downward between a pair of faults. The northern part of … Continue reading

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